Message authentication

Jueneman, Robert R.; Matyas, Stephen M.; Meyer, Christopher

doi:10.1109/mcom.1985.1092643

Cited by 42 publications

(13 citation statements)

References 2 publications

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“…Definition 4 We say that an authentication (signature) scheme is a t out of 1 multi-sender authentication (signature) scheme, when any t out of l senders cannot commit a substitution or impersonation attack, but t + 1 shareholders can create an authenticator (signature) for the message.…”

Section: A the Multi-sender Scenariomentioning

confidence: 99%

Multi-receiver/multi-sender network security: efficient authenticated multicast/feedback

Desmedt

Frankel

Yung

1992

[Proceedings] IEEE INFOCOM '92: The Conference on Computer Communications

100

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We extend the use of traditional pointto-point message authentication to multi-receiver and/or multi-sender scenarios. In this paper we provide eficient cryptographic authentication methods for point-tomultipoint communication, where a single sender can broadcast (multicast) only one unconditionally secure authenticator for a message and which all receivers can verify. We further develop multipoint-to-point (incast) communication in which any subset (of a specified size) of a group of individuals can transmit a single authenticator (or a signature) for a message using the group's key. This method has been called "threshold authentication". It is an application layer which is transparent to the receiver who only deals with the group as one entity. The bandwidth-, computation-, and storageoverheads are reduced substantially when compared with the traditional approach. Threshold authentication hides some aspects of the internal structure of the group which may be important in inter-enterprise communication.

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Section: A the Multi-sender Scenariomentioning

confidence: 99%

Multi-receiver/multi-sender network security: efficient authenticated multicast/feedback

Desmedt

Frankel

Yung

1992

[Proceedings] IEEE INFOCOM '92: The Conference on Computer Communications

100

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“…Because of a variety of birthday-type attacks discovered in conjunction with Don Coppersmith, Jueneman suggested computing the QCMDC four times, using the result of one iteration as the IV for the next iteration, and then concatenating the results to obtain a 128-bit hash value [793]. This was further strengthened by doing the four iterations in parallel and cross-linking them [790,791].…”

Section: Jueneman's Methodsmentioning

confidence: 99%

“…For more mathematical information, consult [1028,793,791,1138,1069,414,91,858,1264]. Bart Preneel's thesis [1262] is probably the most comprehensive treatment of one-way hash functions.…”

Section: Overview Of One-way Hash Functionsmentioning

confidence: 99%

Applied cryptography: Protocols, algorithms, and source code in C

1994

Computer Law & Security Review

771

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“…A Message Authentication Code (MAC) applied to a record would provide us with a way of checking for any changes made [8].We could do this on an individual record basis, creating a MAC of the entire record, storing the MAC value elsewhere on the system, and comparing the stored MAC with a freshlycomputed MAC for every record read event.…”

Section: Integrity Mechanismsmentioning

confidence: 99%

Security and privacy system architecture for an e-hospital environment

Garson

Adams

2008

Proceedings of the 7th Symposium on Identity and Trust on the Internet

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Hospitals are now using electronic medical records and computer applications in order to provide more efficient and thorough care for their patients. The Mobile Emergency Triage system provides doctors with decision support for emergency care by pulling information from a patient's health record and a medical literature database. In order to achieve compliance with privacy legislations PIPEDA and PHIPA, security and privacy measures must be put in place. Encryption and access control are necessary for ensuring proper authorization and confidentiality for patient records. Strong authentication and audit logs are required to ensure access only by those allowed. We discuss differences in security technologies and detail the ones used in our MET system. A new encryption technology called policy-based encryption proves to be quite useful within a health care environment for providing both encryption and access control. We propose an extension to an existing scheme which allows for the use of this cryptography in a hospital setting.

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Message authentication

Cited by 42 publications

References 2 publications

Multi-receiver/multi-sender network security: efficient authenticated multicast/feedback

Multi-receiver/multi-sender network security: efficient authenticated multicast/feedback

Applied cryptography: Protocols, algorithms, and source code in C

Security and privacy system architecture for an e-hospital environment

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